CST, 2947S, p21 Waf1/Cip1 (12D1) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying p21 Waf1/Cip1. Validated for WB,IP,IHC,IF,F. Available in 3 sizes. Highly specific and rigorously validated in-house, p21 Waf1/Cip1 (12D1) Rabbit Monoclonal Antibody (CST #2947) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:50 Immunohistochemistry (Paraffin): 1:50 Immunofluorescence (Immunocytochemistry): 1:400 - 1:800 Flow Cytometry (Fixed/Permeabilized): 1:100 - 1:400 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting, Immunoprecipitation, Immunohistochemistry (Paraffin), Immunofluorescence (Immunocytochemistry), Flow Cytometry (Fixed/Permeabilized) Specificity / Sensitivity p21 Waf1/Cip1 (12D1) Rabbit Monoclonal Antibody detects endogenous levels of total p21 protein. This antibody does not cross-react with other CDK inhibitors. Species Reactivity: Human, Monkey Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy-terminus of human p21. Background The tumor suppressor protein p21 Waf1/Cip1 acts as an inhibitor of cell cycle progression. It functions in stoichiometric relationships forming heterotrimeric complexes with cyclins and cyclin-dependent kinases. In association with CDK2 complexes, it serves to inhibit kinase activity and block progression through G1/S (1). However, p21 may also enhance assembly and activity in complexes of CDK4 or CDK6 and cyclin D (2). The carboxy-terminal region of p21 is sufficient to bind and inhibit PCNA, a subunit of DNA polymerase, and may coordinate DNA replication with cell cycle progression (3). Upon UV damage or during cell cycle stages when cdc2/cyclin B or CDK2/cyclin A are active, p53 is phosphorylated and upregulates p21 transcription via a p53-responsive element (4). Protein levels of p21 are downregulated through ubiquitination and proteasomal degradation (5). Alternate Names CAP20; CDK-interacting protein 1; CDK-interaction protein 1; CDKN1; CDKN1A; CDN1A; CIP1; cyclin dependent kinase inhibitor 1A; Cyclin-dependent kinase inhibitor 1; cyclin-dependent kinase inhibitor 1A (p21, Cip1); DNA synthesis inhibitor; MDA-6; MDA6; melanoma differentiation associated protein 6; Melanoma differentiation-associated protein 6; p21; p21CIP1; p21Cip1/Waf1; PIC1; SDI1; WAF1; wild-type p53-activated fragment 1 Specification REACTIVITY: H Mk SENSITIVITY: Endogenous MW (kDa): 21 Source/Isotype: Rabbit IgG